what we do

We connect prominent companies and promising startups
with our knowledge, experience and business network
and assist them to exploit their potential and opportunities
for growth and global success.

what we do

We connect prominent companies and promising startups
with our knowledge, experience and business network
and assist them to exploit their potential and opportunities
for growth and global success.

how we do that


We understand our
customer’s need!


We help strategize and refine
the optimal solution


We reach out to our wide network
of business partners


We are proactive and help
close the right deal

 I worked with Oren for several years where he proved leadership, good business acumen and found creative ways to tap into opportunities and close deals.

Prof. Yair Tauman - Investor, Founding Dean of Adelson school of entrepreneurship at Raichman University

Oren joined the company at an early stage as an investor where he brought a profound understanding of the energy arena and relevant technologies, as well as a wealth of experience in dealing with challenging business matters. Highly motivated and dedicated, Oren served a major role in advancing the development of the company’s unique technology to the extreme edge, as well as fundraising, while maintaining an excellent working atmosphere among the company’s employees.

Doron Zohar - Co-founder Power Offer, COO

I had the opportunity to work with Oren over many years and experienced his strong capabilities in building long term business in the infrastructure segment, and his passion in building bridges between Israeli innovative companies and Siemens AG. Being oriented both locally and globally made Oren pivotal in helping both sides to understand each other and achieve business success.

Joachim Kundt - Owner Kundt-Consulting, former CEO Siemens UAE

Worked with Oren both as a customer and as a consultant. Oren showed high integrity, fair playing and creative thinking that led to winning strategic multi million Euro projects.

Amos Uzani - Former CEO Israeli Railways, CEO Haifa Port

As a deep-tech start-up founder, I have the privilege of working with OverSi on business and fundraising. Oren is humble with distinctive creativity and shares his knowledge and experience to empower my entrepreneurship journey. Impressively, OverSi has unique blending of business networking, from top-notch investors to exclusive clients.

Yiftach Richter - CEO R2 Wireless

our added value

For International companies

Local Partner

Your trusted partner on the grounds!

Full business cycle

Scouting technologies and companies.
Helping in finding the right partner,
building a winning proposition,
and closing the deal.

Local Market knowledge

Understanding the local mentality,
culture and way of doing
business and part of the ecosystem.

Wide Management Experience

leading both Israeli startups and
large international companies.

For Israeli companies

Global Thinking

Understanding how
international companies
think and operate.

Global Access

Access to a large network and connections
to influential people and
companies in target markets.

Global Reach

Global partners with geography.
and industry expertise
to help in building bridges leveraging
on our experience and trust.

Strong Business Capabilities

Experience in building partnerships,
closing deals and fund raising.

who we are

Oversi was founded by Oren Ahronson and Shimrit Plesner who have worked together for over a decade. They have decided to join forces and utilize their skills set, knowledge and experience to promote businesses based on trust, integrity, professionalism, mainly, but not exclusively in the field of energy and sustainability.

Oren Ahronson – An Israeli businessman, investor, advisor, board member and entrepreneur

Oren began his professional career in a family business Ziegler Electrical Engineering Ltd that led large Energy projects in Israel. The company was acquired by Siemens and was integrated into Siemens Israel. Oren led the Energy and Industry Division and later served as the President and CEO of Siemens Israel. During his 5-year term as CEO, the company grew 3X and became the market leader in various sectors including Power generation, transmission and distribution, Transportation (trains), Healthcare and Industrial applications. In addition, Oren played a leading role in Siemens’ investments in Israeli technology companies. That is where he became passionate about the huge potential of building bridges between Israeli innovative technology and international markets.
After leaving his role at Siemens, Oren continued investing in Startups and took a more active role in helping promising technology companies develop, build and expand to international markets. He focuses on companies in the Energy and AI space and has served as CEO in various Startup companies, including PowerOffer, DNA Trade, InLoop and Evolution Energy.


Shimrit Plesner – Marketing and Operations executive with over 20 years of experience in international corporations in the high tech and energy industries, specializing in marketing strategy planning and execution.

Shimrit began her professional career at Siemens Israel and led the marketing communication activities of the Energy division, and later was promoted to become the Head of Corporate Communications of Siemens in Israel.  After her 10 years at Siemens, Shimrit moved to Metrolight, a provider of energy efficient lighting solutions where she led the Marketing Communications of the company. Following that, Shimrit joined SolarEdge, a leading company in the smart solar inverters and solutions. Shimrit served as the Regional Marketing Manager with full responsibility over Turkey, Cyprus, and Israel.

Later, Shimrit was part of the executive team and served as the VP Operations and Customer Success at InLoop, a startup company in the field of Intelligent content automation. 


contact us